Question

On the Account form, you write a JavaScript function registered on the form OnLoad event that must retrieve the credit limit from a related parent account record and display it in a warning notification. The account record ID is available from the form context. Which Client API approach should you use to retrieve the related record data efficiently within the client script?

Accepted Answer

Call Xrm.WebApi.retrieveRecord with the parent account's ID and a $select query option specifying only the creditlimit column, then handle the returned promise.

Answer

Use formContext.getAttribute('creditlimit').getValue() to read the parent account's credit limit directly from the current form.

Answer

Call Xrm.WebApi.retrieveMultipleRecords against all account records and loop through the results to find the matching parent account.

Answer

Use a synchronous XMLHttpRequest to the Web API endpoint so the value is available before OnLoad completes.